A high-strength polyamide 610 multifilament has a sulfuric acid relative viscosity of 3.0 to 3.7 and a drying strength of more than 9.2 cN/dtex and within 11.0 cN/dtex, having a total fineness of 100 to 2,500 dtex and a single fiber fineness of 1.5 to 40 detex and a birefringence Δn of 50.0 x 10.sup.-3 or more.

Provided is a power transmission V-belt containing: a rubber layer; a cord buried in the rubber layer along the belt circumferential direction; and at least one reinforcing layer buried in the rubber layer, in which the reinforcing layer contains reinforcing fiber filaments having the same length as a belt width; and contains no fibers intersecting with the belt width direction, or contains the fibers intersecting with the belt width direction in a weight per unit area of 30% or less of the reinforcing fiber filaments, in which the reinforcing layer has a structure in which the reinforcing fiber filaments are in a non-twisted state, are oriented in the belt width direction, and are spread and bonded in a sheet shape, and in which the reinforcing layer has a thickness of 0.05 mm to 0.5 mm.

Provided are a CNT forest having favorable spinning properties, and as a method for producing such a CNT forest, a production method in which CNT forest 45 is formed by applying, as deposition base surface 44, a surface including at least one part of inner surface 43 in opening substrate 40 having interior space 42 communicating with an outside through open portion 41, and CNT forest 45 has spinnable portion 47 at end 46 on a side of open portion 41.

The present invention is a novel cable system for a disaster-resistant structure (such as a building or wall) and a method for constructing or assembling the cable system to secure the structure, including the roof of the structure, to a body of cast material such as a foundation, grade beam, base, platform, slab or floor by incorporating flexible cables to resist the very high loads that may occur due to high winds, tornadoes, earthquakes, or other severe storms.

A structure for a semi-static tensile member and a method for producing the semi-static tensile member. A tensile member is prepared by attaching terminations to an assembly of synthetic filaments. The tensile member is then attached to a loading apparatus that subjects the tensile member to a pre-defined loading process. The tensile member is thereby conditioned to a stable length. A bend restricting device is attached to the cable assembly proximate the point where the synthetic strands exit the termination and enter the freely-flexing portion of the cable. The bend restricting device is configured to permit periodic inspection of the cable in the region it covers.

A structure for a semi-static tensile member and a method for producing the semi-static tensile member. A tensile member is prepared by attaching terminations to an assembly of synthetic filaments. The tensile member is then attached to a loading apparatus that subjects the tensile member to a pre-defined loading process. The tensile member is thereby conditioned to a stable length. A bend restricting device is attached to the cable assembly proximate the point where the synthetic strands exit the termination and enter the freely-flexing portion of the cable. The bend restricting device is configured to permit periodic inspection of the cable in the region it covers.

A method for producing a synthetic tensile member having a precisely known and stable length. The invention, also comprises equipment configured to carry out the method. A tensile member is prepared by attaching terminations to an assembly of synthetic filaments. The tensile member is then attached to a loading apparatus that subjects the tensile member to a pre-defined loading process. The tensile member is thereby conditioned to a stable length. The length is then measured and a length adjusting component is incorporated into the tensile member to create a precise and stabilized length that is configured for the tensile member's particular application.

A method for producing a synthetic tensile member having a precisely known and stable length. The invention, also comprises equipment configured to carry out the method. A tensile member is prepared by attaching terminations to an assembly of synthetic filaments. The tensile member is then attached to a loading apparatus that subjects the tensile member to a pre-defined loading process. The tensile member is thereby conditioned to a stable length. The length is then measured and a length adjusting component is incorporated into the tensile member to create a precise and stabilized length that is configured for the tensile member's particular application.

A braided structure that includes a core and a sheath is provided. The core includes a yarn formed at least in part from an aromatic polymer (e.g., an aromatic polyester/liquid crystalline polymer or an aramid polymer), and the sheath, which includes a plurality of ultra high molecular weight polyolefin yarns, is braided around the core. The sheath has an overall diameter ranging from about 60 micrometers to about 650 micrometers. Despite its small diameter, the braided structure can be creep resistant and abrasion resistant while at the same time exhibiting low elongation, a high load at break, and high stiffness. The braided structure can be used in medical applications such as sutures, load bearing orthopedic applications, artificial tendons/ligaments, fixation devices, actuation cables, components for tissue repair, etc.

Disclosed herein are methods for producing core-sheath structures by shaping at least one filament bundle containing a plurality of filaments to form at least one shaped strand of filaments, and braiding a plurality of strands, including the at least one shaped strand of filaments, over a core to form the core-sheath structure containing a braided sheath of the strands surrounding the core, wherein the shaped strand of filaments is an untwisted strand having a twist level of less than 1 turn per meter, a cross-sectional aspect ratio of the shaped strand of filaments is at least 3:1, as measured in the braided sheath, a thickness of at least a portion of the braided sheath ranges from about 10 to about 200 μm, and the braided sheath comprises a synthetic fiber having a tensile strength of greater than 12 cN/dtex. Also disclosed herein are core-sheath structures formed by such methods.